iPhone is an internet-connected multimedia smartphone which combines the main functions of several popular electronic gadgets in a single device. With its 9 cm (3.5 in) liquid crystal display (320×480 px at 6.3 px/mm, 160 ppi) HVGA touchscreen and a minimal hardware interface, it allows us to interact better regardless in watching video, accessing Internet, listening to music, communicating with friends and even playing games.